Honda Civic Ignition Coil Replacement Cost (2006-2026)
Quick Answer
$126-$215 per coil
Full set of 4: $280-$520 including labour at an independent shop. DIY parts only: $120-$280.
Honda dealer: $250-$420 (single coil with diagnostic). Firestone/chain: $190-$280.
Cost by Generation
All Honda Civic generations from 2006-2026 use coil-on-plug (COP) systems. Labour rate: $110-$125/hr at independent shop.
| Generation | Engine | AllData hrs | Aftermarket | OEM | Total (shop) | Notes |
|---|---|---|---|---|---|---|
| 8th gen (2006-2011) | 1.8L R18A / 2.0L R20A | 1.5 hr (set of 4) | $30-$50 each | $55-$80 each | $186-$280 | OEM 30520-RNA-A01 (Denso 673-2305) |
| 9th gen (2012-2015) | 1.8L R18A2 / 2.4L K24 | 1.5 hr (set of 4) | $32-$55 each | $55-$85 each | $190-$295 | OEM 30520-R1A-A01 |
| 10th gen (2016-2021) | 1.5L L15 turbo / 2.0L K20C2 | 1.6 hr (set of 4) | $38-$62 each | $65-$95 each | $210-$325 | Oil fouling common on L15 turbo |
| 11th gen (2022-2026) | 1.5L L15CA turbo | 1.6 hr (set of 4) | $40-$68 each | $70-$100 each | $220-$345 | OEM 30520-59B-023 |
The Oil-Fouled Coil Problem: 10th Gen 1.5L Turbo
Warning: 2016-2021 Civic 1.5T Valve Cover Seal Leak
The 10th-generation Civic with the 1.5L turbocharged L15 engine has a documented valve cover gasket weep pattern. Oil seeps into the spark plug wells, soaks the coil boots, and kills the coils. Cylinder 3 typically fails first (proximity to the breather on the valve cover).
Critical: replacing the coil without fixing the valve cover gasket guarantees the new coil fails within 6-12 months. Valve cover gasket replacement adds $80-$180 to the job. Do both at once.
Which Cylinder Typically Fails First?
8th gen R18A
Cylinder 4 (closest to the firewall heat zone). Check the cylinder 4 boot for oil contamination first.
9th gen
Cylinder 1 is the most reported first failure. Likely thermal loading from cold-start rich-running on the closest-to-manifold cylinder.
10th gen L15 turbo
Cylinder 3 first due to oil contamination from valve cover seal. Confirm oil fouling before replacing; fix the seal first.
Si / Type R
Higher voltage demand (high-rev K20C1 in Type R). Coil life is 50,000-70,000 mi. OEM or Denso only on Si and Type R.
Recommended Parts by Generation
| Generation | OEM part number | Aftermarket (recommended) | Avoid |
|---|---|---|---|
| 8th gen (2006-2011, R18) | 30520-RNA-A01 | Denso 673-2305 (OE-grade) | No-name eBay ($8-$12) |
| 9th gen (2012-2015) | 30520-R1A-A01 | OE-grade (Denso/NGK) | Karlyn STI under $20 |
| 10th gen (2016-2021, L15 turbo) | 30520-5R0-013 | OE-grade (Denso/NGK/Hitachi) | Any budget brand on turbo |
| 11th gen (2022+) | 30520-59B-023 | Genuine Honda or OE-grade | Unverified fitment |
OEM numbers are genuine Honda coil references; confirm against your VIN before ordering. Denso 673-2305 is the OE-grade cross-reference for the 2006-2011 1.8L. Prices are typical part-only figures, not shop totals.
DIY Guide: Honda Civic COP (Easy)
All Civic generations from 2006-2026 use accessible inline COP coils. This is one of the most beginner-friendly engine-bay DIY jobs.
Tools needed:
- 10mm socket + short extension + 3/8" ratchet
- Trim tool for engine cover clips (if present)
- Dielectric grease tube ($5)
- OBD-II scanner to clear codes
Time + savings:
- 10 minutes per coil
- One coil: save $60-$90 labour
- Full set of 4: save $100-$180 labour
- Total DIY parts cost: $120-$280 for a full set
Torque spec: 7-9 ft-lb (84-108 in-lb) for the hold-down bolt on Honda R-series and L-series engines. Confirm in service manual for your year.